Patent US3786290A successfully refreshed from Google Patents.
US3786290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromotor construction
Assignee: Ebm Papst St Georgen GmbH and Co KG
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Filing: 1972-01-18
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Granted: 1974-01-15
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Expires: 1992-01-18
Abstract
Abstract A stator is surrounded by a rotor, and bearings journal the rotor for rotation. The bearings are accommodated in an elongated tubular element which coaxially surrounds the axis of rotation of the rotor and adjacent to a free end portion of which there is located a plate element on which the motor is to be mounted. The plate element extends in a plane which is at least substantially normal to the axis of rotation and a screw extends through the plate element and engages with internal threads provided in the free end portion of the tubular element to thereby mount the same and the motor to the plate element.
Inventors
- 👤 H Papst
- 👤 H Lunde
- 👤 G Wrobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:07
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/05; F04D29/056; H; H02; H02K; H02K5/00; H02K5/04; H02K5/16; H02K5/167; H02K5/1675; H02K7/00; H02K7/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
199 words
Arrangement as described, comprising stator means; rotor means rotatable with reference to said stator means about a predetermined axis and having a shaft coincident with said axis; bearing means journalling said shaft of said rotor means for rotation; a tubular element coaxially surrounding said axis and carrying said bearing means, said tubular element having a free endportion provided with an open end; a plate element located at said free endportion in a plane which is at least substantially normal to said axis, said plate element having two sides one of which faces towards said free endportion, and being provided with an opening extending between said sides; and threaded means coaxial with said axis, connecting said tubular element with said plate element and closing said open end of said free endportion, said tubular element and threaded means having respective meshing threads of a diameter larger than that of said shaft, and said threaded means being a screw having a head located at the other of said sides and bearing thereagainst, a threaded stem extending through said opening and meshing with said thread of said tubular element said stem including an axial recess, and a plate-shaped lubricating insert within said recess.
Claim 2
Dependent Claim
199 words
Arrangement as described, comprising stator means; rotor means rotatable with reference to said stator means about a predetermined axis and having a shaft coincident with said axis; bearing means journalling said shaft of said rotor means for rotation; a tubular element coaxially surrounding said axis and carrying said bearing means, said tubular element having a free endportion provided with an open end; a plate element located at said free endportion in a plane which is at least substantially normal to said axis, said plate element having two sides one of which faces towards said free endportion, and being provided with an opening extending between said sides; and threaded means coaxial with said axis, connecting said tubular element with said plate element and closing said open end of said free endportion, said tubular element and threaded means having respective meshing threads of a diameter larger than that of said shaft, and said threaded means being a screw having a head located at the other of said sides and bearing thereagainst, a threaded stem extending through said opening and meshing with said thread of said tubular element said stem including an axial recess, and a plate-shaped lubricating insert within said recess.
Claim 3
Dependent Claim
34 words
An arrangement as defined in claim 1, said plate element having a side facing toward said free endportion and provided with a projection; and wherein said free endportion has a recess accommodating said projection.
Claim 4
Dependent Claim
46 words
An arrangement as defined in claim 1, wherein said stator means surrounds said tubular element, and wherein said tubular element has a minimum wall thickness in the region of the laminations of said stator means, corresponding to less than half the yoke thickness of said laminations.
References Cited (Backward Citations)
US2614729A
Cited
US2904709A
Cited
US2926838A
Cited
US2990112A
Cited
US3229897A
Cited
US3513339A
Cited
US3512328A
Cited
US3644066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |